From owner-freebsd-fs Sun Jul 1 17:22:32 2001 Delivered-To: freebsd-fs@freebsd.org Received: from salmon.maths.tcd.ie (salmon.maths.tcd.ie [134.226.81.11]) by hub.freebsd.org (Postfix) with SMTP id 22EC937B401; Sun, 1 Jul 2001 17:22:29 -0700 (PDT) (envelope-from iedowse@maths.tcd.ie) Received: from walton.maths.tcd.ie by salmon.maths.tcd.ie with SMTP id ; 2 Jul 2001 01:22:28 +0100 (BST) To: freebsd-fs@freebsd.org Cc: mckusick@mckusick.com, dillon@freebsd.org Subject: Re: CFR: UFS directory hashing In-Reply-To: Your message of "Tue, 19 Jun 2001 20:16:44 BST." <200106192016.aa70837@salmon.maths.tcd.ie> Date: Mon, 02 Jul 2001 01:22:27 +0100 From: Ian Dowse Message-ID: <200107020122.aa66571@salmon.maths.tcd.ie> Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org In message <200106192016.aa70837@salmon.maths.tcd.ie>, Ian Dowse writes: > >If there are no objections, I would like to commit the UFS_DIRHASH >patch in the next few days. The current patch is at A few issues cropped up, so I'm holding off committing this for a while. For two access patterns that are quite common, the use of UFS_DIRHASH caused a significant reduction in performance, so I'd like to address these before committing the patch. The first issue is the case of sequential lookups on all directory entries. This case is highly optimised in UFS, but the dirhash code did not treat it specially. I have added a simple optimisation for this case, but it needs a bit more work. Kirk McKusick ran some filesystem benchmark code with the dirhash code enabled. He found that if the dirhash memory limit was set too small relative to the working set of directories, dirhash would cause a significant performance reduction as compared with the non-dirhash case. I believe this is caused by a thrashing effect; if the hash structures are discarded after only a tiny number of accesses, then the hashing gains are lost by the increased cost of building the hashes. I think the situation here can be improved by using something better than LRU for recycling, and by waiting for a few accesses before going to the trouble of building the hash. Ian To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message From owner-freebsd-fs Mon Jul 2 8:14: 9 2001 Delivered-To: freebsd-fs@freebsd.org Received: from peorth.iteration.net (peorth.iteration.net [208.190.180.178]) by hub.freebsd.org (Postfix) with ESMTP id 0451137B401; Mon, 2 Jul 2001 08:14:05 -0700 (PDT) (envelope-from keichii@iteration.net) Received: by peorth.iteration.net (Postfix, from userid 1001) id 7338859229; Mon, 2 Jul 2001 10:14:02 -0500 (CDT) Date: Mon, 2 Jul 2001 10:14:02 -0500 From: "Michael C . Wu" To: Ian Dowse Cc: freebsd-fs@freebsd.org, mckusick@mckusick.com, dillon@freebsd.org Subject: Re: CFR: UFS directory hashing Message-ID: <20010702101401.B98201@peorth.iteration.net> Reply-To: "Michael C . Wu" Mail-Followup-To: "Michael C . Wu" , Ian Dowse , freebsd-fs@freebsd.org, mckusick@mckusick.com, dillon@freebsd.org References: <200106192016.aa70837@salmon.maths.tcd.ie> <200107020122.aa66571@salmon.maths.tcd.ie> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <200107020122.aa66571@salmon.maths.tcd.ie>; from iedowse@maths.tcd.ie on Mon, Jul 02, 2001 at 01:22:27AM +0100 X-PGP-Fingerprint: 5025 F691 F943 8128 48A8 5025 77CE 29C5 8FA1 2E20 X-PGP-Key-ID: 0x8FA12E20 Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org On Mon, Jul 02, 2001 at 01:22:27AM +0100, Ian Dowse scribbled: | In message <200106192016.aa70837@salmon.maths.tcd.ie>, Ian Dowse writes: | Kirk McKusick ran some filesystem benchmark code with the dirhash | code enabled. He found that if the dirhash memory limit was set | too small relative to the working set of directories, dirhash would | cause a significant performance reduction as compared with the | non-dirhash case. I believe this is caused by a thrashing effect; | if the hash structures are discarded after only a tiny number of | accesses, then the hashing gains are lost by the increased cost of | building the hashes. I think the situation here can be improved by | using something better than LRU for recycling, and by waiting for | a few accesses before going to the trouble of building the hash. I forget the name for this algorithm. (It is usually listed right next to the LRU in books.) How about this? Just retire the oldest access and keep putting the newest access onto the cache. e.g. Elements A B C D E F G 1. Try to read B D C A in that order hash now has BDCA, and hash only has space for 4 elements 2. read D G E in that order Hash now goes like this Read D Hash: B D C A (Note that we don't do anything to the hash since it already has D.) Read G Hash: D C A G Read E Hash: C A G E Thanks, Michael -- +-----------------------------------------------------------+ | keichii@iteration.net | keichii@freebsd.org | | http://iteration.net/~keichii | Yes, BSD is a conspiracy. | +-----------------------------------------------------------+ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message From owner-freebsd-fs Mon Jul 2 11:50: 9 2001 Delivered-To: freebsd-fs@freebsd.org Received: from mail2.bigmailbox.com (mail2.bigmailbox.com [209.132.220.33]) by hub.freebsd.org (Postfix) with ESMTP id 3DC3F37B403 for ; Mon, 2 Jul 2001 11:50:08 -0700 (PDT) (envelope-from petko_bg@cannabismail.com) Received: œby mail2.bigmailbox.com (8.8.7/8.8.7) id LAA02849; Mon, 2 Jul 2001 11:50:07 -0700 Date: Mon, 2 Jul 2001 11:50:07 -0700 Message-Id: <200107021850.LAA02849@mail2.bigmailbox.com> Content-Type: text/plain Content-Disposition: inline Content-Transfer-Encoding: binary X-Mailer: MIME-tools 4.104 (Entity 4.116) Mime-Version: 1.0 X-Originating-Ip: [213.226.0.141] From: "petko popadiyski" To: freebsd-fs@freebsd.org Subject: Recover FS Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org I have made BIG mistake. I have labeled my existing partition (ufs) and now i dont have access to it. It doesn't exist. I have used the label editor in /stand/sysinstall. Is there a way to undo the changes. I haven't writen anything more on the partition. Can the program fsrecover in ports help me? ------------------------------------------------------------ YourName@CannabisMail.com for FREE ! http://www.CannabisMail.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message From owner-freebsd-fs Tue Jul 3 1:24:43 2001 Delivered-To: freebsd-fs@freebsd.org Received: from public.guangzhou.gd.cn (mail1-smtp.guangzhou.gd.cn [202.105.65.221]) by hub.freebsd.org (Postfix) with SMTP id 428BA37B401 for ; Tue, 3 Jul 2001 01:24:34 -0700 (PDT) (envelope-from gzjyliu@public.guangzhou.gd.cn) Received: from fatcow([203.93.59.244]) by public.guangzhou.gd.cn(JetMail 2.5.3.0) with SMTP id jm1c3b41e4bd; Tue, 3 Jul 2001 08:22:02 -0000 Message-ID: <003901c10399$9aa3cbf0$a701160a@fatcow> From: "Jiangyi Liu" To: Subject: [PATCH]FSInfo Validation in mountmsdosfs() Date: Tue, 3 Jul 2001 16:24:36 +0800 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_NextPart_000_0035_01C103DC.A6A404E0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2919.6700 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6700 Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org This is a multi-part message in MIME format. ------=_NextPart_000_0035_01C103DC.A6A404E0 Content-Type: multipart/alternative; boundary="----=_NextPart_001_0036_01C103DC.A6A404E0" ------=_NextPart_001_0036_01C103DC.A6A404E0 Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: base64 SGkgYWxsLA0KDQpJbiAtY3VycmVudCBhbmQgLXN0YWJsZSwgbW91bnRtc2Rvc2ZzKCkgZG9lc24n dCBub3QgY2hlY2sgaWYNCnBtX254dGZyZWUgZXhjZWVkcyB0aGUgbWF4IGNsdXN0ZXIgaW4gdGhl IGZpbGUgc3lzdGVtLiBTbyBpZiBhIGNvcnJ1cHRlZA0KbXNkb3MgZmlsZXN5c3RlbSh3aGljaCBp cyBub3QgdW5jb21tb24pIGlzIHdyaXR0ZW4sIHRoZSBmb2xsb3dpbmcgY29kZQ0KaW4gdXBkYXRl ZmF0cygpQG1zZG9zZnNfZmF0LmMgd2lsbCBnZW5lcmF0ZSBhbiB1bnBsZWFzdXJlIHBhbmljLiA6 KQ0KDQp1X2xvbmcgY24gPSBwbXAtPnBtX254dGZyZWU7DQoNCmlmIChwbXAtPnBtX2ZyZWVjbHVz dGVyY291bnQNCiAgICAmJiAocG1wLT5wbV9pbnVzZW1hcFtjbiAvIE5fSU5VU0VCSVRTXQ0KICAg ICAgICAmICgxIDw8IChjbiAlIE5fSU5VU0VCSVRTKSkpKSB7IC4uLi4gfQ0KDQpBIHBhdGNoIG9m IHByaW1pdGl2ZSB2YWxpZGF0aW9uIGZvciBwbV9ueHRmcmVlIGluDQptb3VudG1zZG9zZnMoKUBt c2Rvc2ZzX3Zmc29wcy5jIGlzIGF0dGFjaGVkIGluIHRoaXMgbWFpbC4gQlRXLCBkb2VzDQphbnlv bmUga25vdyB3aHkgZnNja19tc2RvcyBpcyBtaXNzaW5nIGluIEZyZWVCU0Q/DQoNCkNoZWVycywN CkppYW5neWkNCg0KDQo= ------=_NextPart_001_0036_01C103DC.A6A404E0 Content-Type: text/html; charset="gb2312" Content-Transfer-Encoding: base64 PCFET0NUWVBFIEhUTUwgUFVCTElDICItLy9XM0MvL0RURCBIVE1MIDQuMCBUcmFuc2l0aW9uYWwv L0VOIj4NCjxIVE1MPjxIRUFEPg0KPE1FVEEgY29udGVudD0idGV4dC9odG1sOyBjaGFyc2V0PWdi MjMxMiIgaHR0cC1lcXVpdj1Db250ZW50LVR5cGU+DQo8TUVUQSBjb250ZW50PSJNU0hUTUwgNS4w MC4zMDE4LjkwMCIgbmFtZT1HRU5FUkFUT1I+DQo8U1RZTEU+PC9TVFlMRT4NCjwvSEVBRD4NCjxC T0RZIGJnQ29sb3I9I2ZmZmZmZj4NCjxESVY+PEZPTlQgc2l6ZT0yPkhpIGFsbCw8QlI+PEJSPklu IC1jdXJyZW50IGFuZCAtc3RhYmxlLCBtb3VudG1zZG9zZnMoKSBkb2Vzbid0IA0Kbm90IGNoZWNr IGlmPEJSPnBtX254dGZyZWUgZXhjZWVkcyB0aGUgbWF4IGNsdXN0ZXIgaW4gdGhlIGZpbGUgc3lz dGVtLiBTbyBpZiBhIA0KY29ycnVwdGVkPEJSPm1zZG9zIGZpbGVzeXN0ZW0od2hpY2ggaXMgbm90 IHVuY29tbW9uKSBpcyB3cml0dGVuLCB0aGUgZm9sbG93aW5nIA0KY29kZTxCUj5pbiB1cGRhdGVm YXRzKClAbXNkb3Nmc19mYXQuYyB3aWxsIGdlbmVyYXRlIGFuIHVucGxlYXN1cmUgcGFuaWMuIA0K Oik8QlI+PEJSPnVfbG9uZyBjbiA9IHBtcC0mZ3Q7cG1fbnh0ZnJlZTs8QlI+PEJSPmlmIA0KKHBt cC0mZ3Q7cG1fZnJlZWNsdXN0ZXJjb3VudDxCUj4mbmJzcDsmbmJzcDsmbmJzcDsgJmFtcDsmYW1w OyANCihwbXAtJmd0O3BtX2ludXNlbWFwW2NuIC8gDQpOX0lOVVNFQklUU108QlI+Jm5ic3A7Jm5i c3A7Jm5ic3A7Jm5ic3A7Jm5ic3A7Jm5ic3A7Jm5ic3A7ICZhbXA7ICgxICZsdDsmbHQ7IChjbiAN CiUgTl9JTlVTRUJJVFMpKSkpIHsgLi4uLiB9PEJSPjxCUj5BIHBhdGNoIG9mIHByaW1pdGl2ZSB2 YWxpZGF0aW9uIGZvciBwbV9ueHRmcmVlIA0KaW48QlI+bW91bnRtc2Rvc2ZzKClAbXNkb3Nmc192 ZnNvcHMuYyBpcyBhdHRhY2hlZCBpbiB0aGlzIG1haWwuIEJUVywgDQpkb2VzPEJSPmFueW9uZSBr bm93IHdoeSBmc2NrX21zZG9zIGlzIG1pc3NpbmcgaW4gDQpGcmVlQlNEPzxCUj48QlI+Q2hlZXJz LDxCUj5KaWFuZ3lpPEJSPjxCUj48L0ZPTlQ+PC9ESVY+PC9CT0RZPjwvSFRNTD4NCg== ------=_NextPart_001_0036_01C103DC.A6A404E0-- ------=_NextPart_000_0035_01C103DC.A6A404E0 Content-Type: application/octet-stream; name="msdos.diff" Content-Transfer-Encoding: quoted-printable Content-Disposition: attachment; filename="msdos.diff" *** msdosfs_vfsops.c.orig Sat Jun 30 14:21:15 2001 --- msdosfs_vfsops.c Sat Jun 30 14:30:25 2001 *************** *** 681,686 **** --- 681,692 ---- /* * Check and validate (or perhaps invalidate?) the fsinfo structure? = XXX */ + if (pmp->pm_fsinfo && pmp->pm_nxtfree > pmp->pm_maxcluster) { + printf ("Next free cluster in FSInfo (%u) exceeds maxcluster = (%u)\n", + pmp->pm_nxtfree, pmp->pm_maxcluster); + error =3D EINVAL; + goto error_exit; + } =20 /* * Allocate memory for the bitmap of allocated clusters, and then ------=_NextPart_000_0035_01C103DC.A6A404E0-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message From owner-freebsd-fs Tue Jul 3 2: 1:41 2001 Delivered-To: freebsd-fs@freebsd.org Received: from mail12.bigmailbox.com (mail12.bigmailbox.com [209.132.220.43]) by hub.freebsd.org (Postfix) with ESMTP id D8B9C37B401 for ; Tue, 3 Jul 2001 02:01:39 -0700 (PDT) (envelope-from petko_bg@cannabismail.com) Received: œby mail12.bigmailbox.com (8.8.7/8.8.7) id CAA21129; Tue, 3 Jul 2001 02:01:39 -0700 Date: Tue, 3 Jul 2001 02:01:39 -0700 Message-Id: <200107030901.CAA21129@mail12.bigmailbox.com> Content-Type: text/plain Content-Disposition: inline Content-Transfer-Encoding: binary X-Mailer: MIME-tools 4.104 (Entity 4.116) Mime-Version: 1.0 X-Originating-Ip: [194.12.242.98] From: "petko popadiyski" To: freebsd-fs@freebsd.org Subject: Unlabel slice Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org I am in big trouble. I have made one big mistake. I have deleted the slices of my freebsd partition inmy Freebsd 4.3 stable with the /stand/sysinstall label editor. i havent made any further changes on this partition. at the moment it is unlabeled , hoping i can repair it. Can you tell me if i have a chance to do this and if i can how? ------------------------------------------------------------ YourName@CannabisMail.com for FREE ! http://www.CannabisMail.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message From owner-freebsd-fs Tue Jul 3 10:54: 9 2001 Delivered-To: freebsd-fs@freebsd.org Received: from earth.backplane.com (earth-nat-cw.backplane.com [208.161.114.67]) by hub.freebsd.org (Postfix) with ESMTP id DEF8637B406 for ; Tue, 3 Jul 2001 10:54:05 -0700 (PDT) (envelope-from dillon@earth.backplane.com) Received: (from dillon@localhost) by earth.backplane.com (8.11.3/8.11.2) id f63Hrnd33021; Tue, 3 Jul 2001 10:53:49 -0700 (PDT) (envelope-from dillon) Date: Tue, 3 Jul 2001 10:53:49 -0700 (PDT) From: Matt Dillon Message-Id: <200107031753.f63Hrnd33021@earth.backplane.com> To: Ian Dowse Cc: freebsd-fs@FreeBSD.ORG, mckusick@mckusick.com Subject: Re: CFR: UFS directory hashing References: <200107020122.aa66571@salmon.maths.tcd.ie> Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org :In message <200106192016.aa70837@salmon.maths.tcd.ie>, Ian Dowse writes: :> :>If there are no objections, I would like to commit the UFS_DIRHASH :>patch in the next few days. The current patch is at : :A few issues cropped up, so I'm holding off committing this for a :while. For two access patterns that are quite common, the use of :UFS_DIRHASH caused a significant reduction in performance, so I'd :like to address these before committing the patch. : :The first issue is the case of sequential lookups on all directory :entries. This case is highly optimised in UFS, but the dirhash code :did not treat it specially. I have added a simple optimisation for :this case, but it needs a bit more work. : :Kirk McKusick ran some filesystem benchmark code with the dirhash :code enabled. He found that if the dirhash memory limit was set :too small relative to the working set of directories, dirhash would :cause a significant performance reduction as compared with the :non-dirhash case. I believe this is caused by a thrashing effect; :if the hash structures are discarded after only a tiny number of :accesses, then the hashing gains are lost by the increased cost of :building the hashes. I think the situation here can be improved by :using something better than LRU for recycling, and by waiting for :a few accesses before going to the trouble of building the hash. : :Ian Hmm. I don't think messing with the recycling algorithm will help. A delayed approach to hashing the directory might work, you could use the directory vnode or the namei cache (associated with the directory itself) to store the statistics or something like that. -Matt To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message From owner-freebsd-fs Tue Jul 3 16:44:52 2001 Delivered-To: freebsd-fs@freebsd.org Received: from transmail4.infosources.fr (transmail4.infonie.fr [212.232.33.75]) by hub.freebsd.org (Postfix) with ESMTP id 78DD237B403 for ; Tue, 3 Jul 2001 16:44:48 -0700 (PDT) (envelope-from s.blanchard@infonie.fr) Received: from infonie.fr (mailbox.infonie.fr [195.242.64.77]) by transmail4.infosources.fr (8.9.3+Sun/8.9.3) with SMTP id BAA09182 for ; Wed, 4 Jul 2001 01:32:28 +0200 (MET DST) Received: from gateway ( Unverified [195.242.89.180] ) by infonie.fr with SMTP id 13634.634757.277242; Wed, 4 Jul 2001 01:32:27 +0200 Message-ID: <000801c10418$c51505a0$0500a8c0@pc> From: =?iso-8859-1?Q?Blanchard_S=E9bastien?= To: Subject: VFS Documentation Date: Wed, 4 Jul 2001 01:34:57 +0200 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0005_01C10429.88518A60" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2314.1300 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2314.1300 Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org This is a multi-part message in MIME format. ------=_NextPart_000_0005_01C10429.88518A60 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hello, I'm a french student and I write my own File System, I just want to know = wher I can found a documentation about VFS under freebsd (website or = book). Thank you for repsonses .. SB. ------=_NextPart_000_0005_01C10429.88518A60 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hello,
I'm a french student and I write my own File System, = I just=20 want to know wher I can found a documentation about VFS under = freebsd=20 (website or book).
 
Thank you for repsonses ..
 
SB.
------=_NextPart_000_0005_01C10429.88518A60-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message From owner-freebsd-fs Tue Jul 3 17: 6:51 2001 Delivered-To: freebsd-fs@freebsd.org Received: from blackhelicopters.org (geburah.blackhelicopters.org [209.69.178.18]) by hub.freebsd.org (Postfix) with ESMTP id 578AD37B403 for ; Tue, 3 Jul 2001 17:06:49 -0700 (PDT) (envelope-from mwlucas@blackhelicopters.org) Received: (from mwlucas@localhost) by blackhelicopters.org (8.9.3/8.9.3) id UAA87358; Tue, 3 Jul 2001 20:06:46 -0400 (EDT) (envelope-from mwlucas) Date: Tue, 3 Jul 2001 20:06:46 -0400 From: Michael Lucas To: =?iso-8859-1?Q?Blanchard_S=E9bastien?= Cc: freebsd-fs@FreeBSD.ORG Subject: Re: VFS Documentation Message-ID: <20010703200646.B87317@blackhelicopters.org> References: <000801c10418$c51505a0$0500a8c0@pc> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit User-Agent: Mutt/1.2i In-Reply-To: <000801c10418$c51505a0$0500a8c0@pc>; from s.blanchard@infonie.fr on Wed, Jul 04, 2001 at 01:34:57AM +0200 Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Hello, Your best bet is "The Design and Implementation of the 4.4 BSD Operating System," from Addison-Wesley. Good luck! On Wed, Jul 04, 2001 at 01:34:57AM +0200, Blanchard Sébastien wrote: > Hello, > I'm a french student and I write my own File System, I just want to know wher I can found a documentation about VFS under freebsd (website or book). > > Thank you for repsonses .. > > SB. -- Michael Lucas mwlucas@blackhelicopters.org http://www.blackhelicopters.org/~mwlucas/ Big Scary Daemons: http://www.oreillynet.com/pub/q/Big_Scary_Daemons To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message From owner-freebsd-fs Wed Jul 4 14:39:43 2001 Delivered-To: freebsd-fs@freebsd.org Received: from mail.gmx.net (pop.gmx.net [194.221.183.20]) by hub.freebsd.org (Postfix) with SMTP id 7594137B407 for ; Wed, 4 Jul 2001 14:39:40 -0700 (PDT) (envelope-from j_trzaska@gmx.net) Received: (qmail 10039 invoked by uid 0); 4 Jul 2001 21:39:38 -0000 Received: from pd4b9f213.dip.t-dialin.net (HELO gmx.net) (212.185.242.19) by mail.gmx.net (mp030-rz3) with SMTP; 4 Jul 2001 21:39:38 -0000 Message-ID: <3B438CCE.A1577306@gmx.net> Date: Wed, 04 Jul 2001 23:38:22 +0200 From: Jens Trzaska X-Mailer: Mozilla 4.75 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: petko popadiyski Cc: freebsd-fs@freebsd.org Subject: Re: Unlabel slice References: <200107030901.CAA21129@mail12.bigmailbox.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Hello! petko popadiyski wrote: > > I am in big trouble. I have made one big mistake. I have deleted the slices of my freebsd partition inmy Freebsd 4.3 stable with the /stand/sysinstall label editor. i havent made any further changes on this partition. at the moment it is unlabeled , hoping i can repair it. Can you tell me if i have a chance to do this and if i can how? You only deleted the slices? Or have you created new ones? Some time i did that, but after recreating the slice as it was before it was fine again. All the partitions were in the place again. Perhaps you could try gpart. You can find it on freshmeat.net. It searches on the hole disk for signs of slices and also disklabels and tries to recreate a partition table by the information it finds. Perhaps that could help. Regards Jens Trzaska To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message From owner-freebsd-fs Fri Jul 6 5:45:19 2001 Delivered-To: freebsd-fs@freebsd.org Received: from relay.wplus.net (relay.wplus.net [195.131.52.179]) by hub.freebsd.org (Postfix) with ESMTP id 9642337B401 for ; Fri, 6 Jul 2001 05:45:16 -0700 (PDT) (envelope-from ricsLtd@hotmail.com) Received: from relay1.wplus.net (smtp.wplus.net [195.131.52.143]) by relay.wplus.net (8.9.1/8.9.1/wplus.2) with ESMTP id QAA41807 for ; Fri, 6 Jul 2001 16:45:15 +0400 (MSD) From: ricsLtd@hotmail.com X-Real-To: Received: from Olga (ip94-78.dialup.wplus.net [195.131.94.78]) by relay1.wplus.net (8.9.1/8.9.1/wplus.2) with SMTP id QAA72381 for ; Fri, 6 Jul 2001 16:45:14 +0400 (MSD) Date: Fri, 6 Jul 2001 16:45:14 +0400 (MSD) Message-Id: <200107061245.QAA72381@relay1.wplus.net> To: X-Mailer: PersMail 3.1 Mime-Version: 1.0 Content-Type: text/plain; charset=Windows-1251 Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Looking for the contract or permanent IT staff? We can recruit Russian IT professionals for you? Have a look at www.ricsltd.co.uk. We have a lot to offer! You will be impressed with our services, low fees as well as quality of programmers. If you have any questions please do not hesitate to contact us: info@ricsltd.co.uk Regards, Andrei Nikonorov ________________________________ Sent by "PersMail 3.1" (freeware) ÇÀÎ "ÀÑÓ-Èìïóëüñ": Áèçíåñ-ñïðàâî÷íèêè è áàçû äàííûõ "Ýëåêòðîííàÿ áèáëèîòåêà õóäîæåñòâåííîé ëèòåðàòóðû" To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message From owner-freebsd-fs Sat Jul 7 18:18:57 2001 Delivered-To: freebsd-fs@freebsd.org Received: from blackhelicopters.org (geburah.blackhelicopters.org [209.69.178.18]) by hub.freebsd.org (Postfix) with ESMTP id E676A37B403 for ; Sat, 7 Jul 2001 18:18:54 -0700 (PDT) (envelope-from mwlucas@blackhelicopters.org) Received: (from mwlucas@localhost) by blackhelicopters.org (8.9.3/8.9.3) id VAA05149 for fs@freebsd.org; Sat, 7 Jul 2001 21:18:54 -0400 (EDT) (envelope-from mwlucas) Date: Sat, 7 Jul 2001 21:18:54 -0400 From: Michael Lucas To: fs@freebsd.org Subject: unionfs status for 5.0? Message-ID: <20010707211854.A5100@blackhelicopters.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2i Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Hello, I'm working on a book that will be covering FreeBSD 5.0, scheduled for publication in the first part of next year. cvsweb shows that people have been through unionfs lately. Is unionfs still considered dangerous? I'd like to discuss it in the book, as it's massively cool and very useful in jails, but I don't want to recommend things that will suck in a production environment. Since you're the poor folks who have to support whatever I tell people to do, I'm asking you. Should I discuss it, or shouldn't I? Regards, ==ml PS: I also presume nullfs is still an atrocity to be avoided under pain of, well, pain? -- Michael Lucas mwlucas@blackhelicopters.org http://www.blackhelicopters.org/~mwlucas/ Big Scary Daemons: http://www.oreillynet.com/pub/q/Big_Scary_Daemons To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message